H2SO4 storage tanks · outfitted in Willis, TexasMon–Fri · 936-228-1520
HDPE · PVDF · Polypropylene
Plastic tanks built for H2SO4 from 25 to 10,000 gallons, every one rated 1.9 or 2.2 specific gravity, with fittings and Viton® gaskets matched to your acid concentration.
1.9 & 2.2 SG onlyUp to 93% H₂SO₄Single & double wallOutfitted in TexasShop Sulfuric Acid TanksRequest a Quote1698.08H2SO4Sulfuric acidCAS 7664-93-9 · SG 1.84
Choose by concentration
HDPE, polypropylene and PVDF each handle sulfuric acid differently. Find your concentration below.
1–10%
HDPE, polypropylene and PVDF tanks all rated Excellent. Every common fitting and gasket works.
HDPE tanks · Polypropylene · PVDF
10–75%
HDPE, polypropylene and PVDF all Excellent. Viton® gaskets Excellent; EPDM and Buna-N Good.
HDPE tanks · Polypropylene for hot acid · Double wall
75–93%
PVDF rated Excellent and HDPE rated Good. Polypropylene drops to Fair. Use PVDF fittings and Viton® gaskets.
PVDF tanks · HDPE tanks · PVDF fittings
93–98%
Above the range of our database. Call us before storing 93–98% acid so we can review your application.
Sulfuric acid tanks
Live sizes, dimensions and prices on every page. Every tank listed is rated 1.9 or 2.2 SG.
Heavy-duty high-density polyethylene vertical tanks rated 1.9 and 2.2 specific gravity, the most economical way to store sulfuric acid up to 93%.
View tanks →100 – 10,000 gal · 33 sizes
A tank inside a tank.
View tanks →25 – 5,000 gal · 17 sizes
PVDF (Kynar®) tanks are rated Excellent for sulfuric acid from 1% to 93%, with the highest temperature and purity performance of any tank resin we mold.
View tanks →25 – 6,000 gal · 25 sizes
Polypropylene tanks are rated Excellent for sulfuric acid up to 75% and handle continuous temperatures up to 200°F, a good fit for hot, dilute acid in plating and process lines.
View tanks →325 – 10,000 gal · 12 sizes
Closed-top HDPE cone bottom tanks drain completely through the bottom outlet, so no acid is left behind when you empty the tank.
View tanks →25 – 10,000 gal · 65 sizes
Highly concentrated sulfuric acid can freeze in cold weather.
View tanks →See All 12 Tank Styles
Our recommendation
The sealed outer tank captures a leak from the inner tank and keeps fumes from spilled acid inside. A containment dike can’t do that.
HDPE Double Wall TanksPVDF Double Wall
Know your acid
Sulfuric acid is dense, strongly corrosive and reacts with water, releasing heat. Dilute acid attacks most metals and can release hydrogen gas.
That’s why we build sulfuric acid tanks in plastic, list only heavy-duty 1.9 and 2.2 SG ratings, and match every fitting and gasket to the concentration. Independent ExxonMobil testing also found that linear HDPE holds up far better than crosslinked polyethylene in concentrated acid, and the HDPE tanks we mold are linear HDPE. Read the full sulfuric acid storage guide.
FormulaH2SO4Specific gravity1.84 at 96–98%WeightAbout 15 lb / galFreezesBelow 51 °F (pure)GHSDanger · H314DOTClass 8 · UN 1830
Data: PubChem CID 1118
Fittings & gaskets
A tank is only as good as its weakest fitting. We install fittings at our plant so they arrive ready to connect.
Sulfuric Acid FittingsCompatibility Chart
Who stores sulfuric acid
Sulfuric acid is one of the world’s most important bulk chemicals. BASF, one of the largest producers, supplies it to the fibers, chemical, metalworking, leather and textile industries.
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Bulk acid storage for fertilizer production and blending.
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pH adjustment and treatment chemical storage.
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Pickling, cleaning and electroplating lines.
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Petroleum refining and chemical processing.
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Electrolyte storage for lead-acid battery production.
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Wet etching, at a standard 96% concentration.
Uses from PubChem; producer information from BASF Bulk Chemicals.
FAQ
For most sulfuric acid storage, an HDPE tank rated 1.9 or 2.2 SG is the most economical choice; HDPE is rated Excellent to 75% and Good to 93%. For concentrated acid, PVDF (Kynar®) is rated Excellent from 1% to 93%. We recommend double wall tanks to contain leaks and fumes.
Concentrated sulfuric acid has a specific gravity of about 1.84, so it is much heavier than water. A tank must be rated at or above the specific gravity of its contents, so we list only 1.9 and 2.2 SG tanks.
Yes, up to 75% concentration, where polypropylene is rated Excellent and handles temperatures up to 200°F. Above 75% it drops to Fair, so use HDPE or PVDF.
Viton® is rated Excellent at every concentration from 1% to 93%. EPDM is Good above 10% and Buna-N drops to Fair above 75%.
Yes. We mold and outfit tanks at our plant in Willis, Texas and ship them with fittings installed. Call 936-228-1520 for freight and lead time.
An ExxonMobil Chemical study found that crosslinked polyethylene became brittle within about 1,000 hours in 97% sulfuric acid, while linear HDPE kept most of its impact strength and elongation through 4,000 hours. HDPE tanks molded by Bailiff are linear HDPE, made from Dow RESILITY™ DPDB-3220 NT 7 or a comparable linear HDPE resin. Read the summary. A copy of the full study is available from Bailiff by email request: dmiller@plasticstoragetanks.com.
Tanks used for sulfuric acid carry a limited one-year warranty from the date of manufacture, and fittings we install carry a one-year warranty. See warranty terms.
Send the acid concentration, temperature, volume and fittings you need. We’ll match the resin, SG rating and gaskets and send a quote.